The lightweight EconoMat® works best on low pile and commercial carpets up to 1/4" thick. Studded design grips carpet and keeps the chair mat from moving while protecting floors from caster wear, spills and heavy traffic. Free and Clear® formula offers exceptional clarity without harsh chemicals. GREENGUARD Gold Certified for low chemical emissions and healthier indoor air. Includes Manufacturer's Limited One-Year Product Replacement Warranty. Made in the USA.